I had this same problem. I am 32 weeks and my doc said its a lack of calcium, and that it was safe to take up to 1500mg of calcium a day. I take about 1000 and that made the pain go away. i would wake up in the middle of the night in such pain i couldn't move my leg!

I'm 14 weeks and I get those all the time...I even got them before I became pregnant for as long as I can remember....and I am a__suming it will get worse when I am further along :S I hate the feeling of it. I just jump out of bed panicing

You need more calcium in your diet and eat lots of bananas for the pota__sium. As soon as you feel a leg cramp coming on, jump up and stand or walk on it. The cramp will disappear immediately. Either that, or grab your toes and pull towards you till the cramp goes away.